I think the typical working voltages were: 350vdc, 500vdc, 750vdc, and 1000vdc. The 750v and 1000v had thicker leads. As for physical size, it varied depending on voltage rating and tolerance. A 1% and 2% tolerance cap was larger in size compared to a 5% or 10% cap.

They appear to be pretty far out of tolerance according to the sellers measurements. Some Lemco's have a voltage rating stamped on the back which the seller didn't post pictures of. Tough to tell from the picture which voltage these ones are, but I don't think they are 1000Vdc....Perhaps Neil might have a better insight.

Be sure to use a heatsink when soldering them. I have read several times lately of people having problems with noisy silver micas. It seems that they are easily damaged from overheating when soldering. I have never had an issue but using a heatsink is good insurance to prevent damage. http://www.thegearpage.net/board/index. ... t-22093134